n^th term of the following sequence ak, ak³, ak⁵.......is

If 2/3, k, 5/8k are in A.P, then k =

The sum (m + n)^th term and (m - n)^th terms of an A.P is equal to twice the

Find the 5^th term in the sequence a₁ = 3, a₂ = 3 and an = a_n-1 + a_{n-2 ;} a>2

Common ratio of G.P a^m-n, a^m, a^m+n.........is

Next term in the series 3/16 + 1/18 + 1/12 +.........is

9^th term of the sequence 3, 6, 12, 24........

If t_n denotes the nth term of the series 2+3+6+11+18----------then t₅₀ is

1 + 2 + 3 +........30 =

The 10^th common term between the series 3+7+11+................ and 1+6+11+----- is